2,4-Dichlorobenzenediazonium tetrafluoroborate CAS:21872-70-8

2,4-Dichlorobenzenediazonium tetrafluoroborate is a chemical compound that consists of a benzene ring attached to a diazonium functional group. The benzene ring is substituted with chlorine atoms at positions 2 and 4. The tetrafluoroborate salt is added to enhance stability and solubility.

This compound is commonly used in organic synthesis as a diazonium coupling agent. It can undergo diazonium coupling reactions with various nucleophilic compounds, such as amines, phenols, and carbon nucleophiles. These reactions result in the formation of aromatic compounds, which can have applications in dyes, pigments, pharmaceuticals, and other organic products.

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Application and Effect

Aryl coupling reactions: 2,4-Dichlorobenzenediazonium tetrafluoroborate can be used as a coupling partner in Suzuki-Miyaura cross-coupling reactions, allowing the formation of biaryl compounds.

Electrophilic aromatic substitutions: The diazonium group in this compound can be easily replaced by nucleophiles, such as amines, phenols, or thiols, resulting in the introduction of diverse functional groups onto aromatic rings.

Radical reactions: The diazonium salt can undergo reductive elimination to form aryl radicals, which can then participate in radical reactions, including carbon-carbon bond formation.

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Composition	C6H3BCl2F4N2
Assay	99%
Appearance	White powder
CAS No.	21872-70-8
Packing	Small and bulk
Shelf Life	2 years
Storage	Store in cool and dry area
Certification	ISO.